Cillian is a former Nightrunner. He served in the military alongside Frank and Hakon. He was one of the first Nightrunners and was there for the opening and building of the Fisheye.
In the Journals of a Nightrunner tapes, Cillian recruits a young Peacekeeper, Anton Novak. He trained Anton and became a mentor for him. In the fifth entry, Cillian and Anton have an argument regarding going deeper into a dark zone. Anton is attacked by a viral and Cillian saves him.
Cillian disagreed with Frank’s plans to take the VNC tower in the past, and sided with Hakon.
If you give Frank the VNC tower, Cillian will join the Nightrunners and is seen drinking outside the Fisheye after Lawan’s party.
Aiden:"We're so fucked..." Hakon:"Hah... Godammit, Cillian! Should've waited a while longer." Cillian:"Almost did. Didn't wanna clean your guts off my doorstep in the morning. They've left. So can you." Hakon:"C'mon, stop being such a bastard already. Look at this." Cillian:"Where did you...? That's rare!" Hakon:"Invite us in or it'll get even more rare." Cillian:"And who is this?"
Aiden:"(First, let us in.)"
Aiden:"(Aiden, a pilgrim.) I'm a Pilgrim."
Cillian:"Haven't been here long, have you? How did you get into town?"
Aiden:"I'll tell you everything. Just let us in."
Cillian:"I waited for a Pilgrim once. He was supposed to... Ah, forget it... It doesn't matter anymore. What are you up to, Hakon, huh?"
Hakon:"I gave him an inhibitor. He survived."
Cillian:"Are you mad?"
Hakon:"He needs a biomarker."
Cillian:"Don't have one."
Hakon:"Bullshit."
Cillian:"Seriously."
Hakon:"Motherfucker... The hospital then. I was hoping to avoid it."
Cillian:"Always looking for an easy way, huh, Hakon?"
Aiden:"I just need a UV lamp."
Hakon:"I'll come back for you. Hold tight."
Cillian:"Hakon... Why are you helping him, huh?"
Hakon:"Remember when we used to help people?"
Cillian:"Me, sure. But I doubt you do."
Hakon:"Stay here and rest by the lamp. And don't listen to that dumbass."
Cillian:"Idiot...! We used to help people, remember...? Sure I remember... you moron..."
(Upon approaching Cillian) Cillian:"A fucking cabby and a mother of mercy all in one... But you could cook. Everyone around you said that's what you should do: cook. Life woulda been easier. No Nightrunners, no Hakons, no problems. But no... You wanted something else. Higher fucking causes. Or... And you could just cook."
Aiden:"(You and Hakon known each other long?) You and Hakon... Known each other long?"
Cillian:"Too long..."
Aiden:"What did he mean when he said that you used to help people?"
Cillian:"We served together in a special... Ah, doesn't matter. Ancient history."
Aiden:"(Ask about biomarkers) Biomarkers... why are they so hard to get?"
Cillian:"Because they're complicated devices. Hell, the factories that made them have been out of commission for years. Biomarkers are keyed to blood. They can't be reused after someone syncs with it. Without them, the infection runs unchecked... like what's happened to you. That's why people pay a fortune to get a new one. All the money and crystals they have. Fortunately, me and Hakon found a place where they can still be made."
Aiden:"(Ask about inhibitors) What's wrong with Hakon giving me inhibitors?"
Cillian:"Kills most people in seconds. It's a powerful drug. Most can't handle it."
Aiden:"But I survived."
Cillian:"I said "most," so don't get excited. Just be careful with them."
Aiden:"(Where can I rest?) Where can I rest?"
Cillian:"So you just got into town? What brought you here? This ain't the promised land. Far from it."
Aiden:"I need to get to the Fish Eye."
Cillian:"And Hakon's helping you get there? You seem like a good kid, but... Take my advice: Don't go doling out trust like penny candy. Hell... How do you know you can trust me? Okay, enough jabber. Go to sleep. Nothing to be done 'til morning anyway."
